That might be it for now, until the new servo arrives or I want to change something about the pen. Here's my current #SolderingStation setup, the solder feeder mounts to the front and the spring clips hold my Pinecil and the feeder pen when not in use so the whole thing packs up vertically and is carry-able with that handle.

I didn't actually need to put headers on this Pi Pico for any particular project, but - I'm sure you'll understand - I needed to solder *something*.

#3DPrinting

From day one, I designed the thing to screw to the base of my own #SolderingStation project, which includes a spindle for a roll of solder. I could make a basic version of that to go with the feeder.

It's not hard to hook a roll of solder onto something, but the feeder will work best when it's pulling right off the top of a roll, so a bespoke 3D printed part to put things in the right position won't be much of a chore.

The fully assembled solder feeder, now attached to the front of my #SolderingStation. It replaces the simple little stand I previously used to just bend the end of my solder wire over - that's still attached next to it in case I ever want it again.

I think the trick with this filament is to print with super low layer height, and enable ironing - the top of this thing looks like machined delrin or something.

Last step is finishing the feeder pen itself.

Continuous rotation servo + a 608 size bearing and TPU wheels + PTFE tubing + fewer 3D printed parts than you'd think + actually securing this contraption to my soldering station = a computer-controlled power feed for solder wire, for those long electronics assembly sessions.

Even before starting on the second part (the actual pen with buttons you hold at the other end of the tube) this is a serious project milestone and I'm very happy with it. #maker #3DPrinting #SolderingStation

Second soldering jig for the last part of assembly - this one holds the NES socket daughterboard to the Pro Micro mainboard so it can be soldered together at a precise 90 degree angle.

It's being held conveniently aloft by my #SolderingStation, which immediately became an integral part of my workshop infrastructure the moment it came together.